Re: 28 Days Later
I don't think I like being called flippant! Wry, tongue-in-cheek, brief, all of these might be applicable, but I'm pretty sure I'm not "marked by disrespectful levity or casualness." Levity, yes. Casualness, arguably. Disrespect, not in this case (though certainly in others).
Anyway, I agree the ending wasn't great, though it wasn't bad either. I did see the alternate ending, and it blew. It might have worked if they added a minute or two more to it, but as is it was bad. So the only change I would make to my original post would be to say the ending kept it from being a great movie, but didn't ruin it by any means.